The Commissioner of Highways may pay and settle claims and demands against the Commonwealth arising as a result of damages sustained to personal property by reason of work projects or the operation of state-owned or operated equipment when engaged in the construction, reconstruction, or maintenance of the primary state highway system, unless said claims or demands arise as a result of negligence of the person asserting such claims or demands. Nothing in this section shall be construed as imposing any legal liability upon the Commonwealth to pay such claims or demands, nor as giving the consent of the Commonwealth to be sued in any action or suit to recover on such claims or demands in the event the Commissioner of Highways refuses payment of said claims or demands.